https://www.arduino.cc/reference/en

Arduino programming language can be divided in three main parts: structure, values (variables and constants), and functions.

Change:

Arduino programming language can be divided in three main parts

To:

Arduino's programming language (C++) can be divided in three main parts

Reasoning:
There is widespread misunderstanding that there is an "Arduino Programming Language". The original text could make a beginner think this. My suggested change is consistent with the existing description text for the Structure section: "The elements of Arduino (C++) code."

Change:

structure, values (variables and constants), and functions.

To:

functions, values (variables and constants), and structure.

Reasoning:
This is the order the sections appear on the page.